lucene-general mailing list archives

Thank you.
If the index files are very big(10G), I cannot load them to ram in one process.
Shoud I use MutilSearcher to load index files with serval processes?
How about its performance?
by the way, I think only .frq and .tis files need to load in ram.
And it can save some ram.
roy
----- Original Message -----
From: "Michael McCandless" <lucene@mikemccandless.com>
To: <general@lucene.apache.org>
Sent: Thursday, July 24, 2008 6:09 PM
Subject: Re: How to use lucene for high search performance ?
Try InstantiatedIndexWriter/Reader (under contrib/instantiated)?
It consumes more RAM than the RAMDirectory approach, but is faster
performance.
Mike
PS -- this sort of question should go to java-user in the future.
王建新 wrote:
>
> Hi,
> If I use lucene to execute many search requests at one time, the
> io operation will be the bottleneck of the performance.
> So I use RAMDirectory to avoid io operation.
> But I found RAMDirectory cannot raise the performance much if the
> index is big( about 1.2G).
> Could anyone give me any advice to raise the performance for
> concurrent search operation?
> Thanks.
>
> roy